Description :

Peoplebox.ai is a fast-growing, YC-backed start-up building an AI-powered Performance Management platform. We help modern companies drive real business outcomes by aligning people, goals, and feedback - all inside everyday tools like Slack, Teams, and email.

Responsibilities :

- Build and maintain MVC-based Ruby on Rails applications and RESTful APIs, ensuring code is clean, modular and well-documented.

- Implement and optimize asynchronous jobs using Sidekiq and/or Delayed Job to support long-running or high-volume tasks.

- Leverage Redis for caching, session storage and job management to deliver fast, responsive user experiences.

- Design efficient schemas, write optimized SQL (MySQL or PostgreSQL), and apply indexing and normalization best practices.

- Architect and iterate on scalable, decoupled systems - whether monolith or microservices - balancing performance, reliability and maintainability.

- Define, document and consume secure, versioned RESTful endpoints that serve both internal and external clients.

- Write and maintain unit/integration tests (RSpec or Minitest), and contribute to CI/CD pipelines for automated builds, tests and deployments.

- Partner with product managers, designers and front-end engineers to translate business requirements into technical solutions.

- Provide clear, proactive updates on progress, challenges and trade-offs.

Requirements :

- Ruby on Rails, Javascript, Python : 5+ years of production-grade experience, strong grasp of MVC conventions and Rails best practices.

- Background Jobs : Hands-on with Sidekiq and/or Delayed Job for asynchronous processing.

- Redis : Proven use for caching, session storage, pub/sub or job queues.

- Relational Databases : Expert in MySQL or PostgreSQL - schema design, indexing, query optimization.

- API Development : Comfort designing, documenting and securing RESTful APIs.

- System Design : Ability to decompose complex problems, build modular services (microservices a plus) and make trade-off decisions.

- Version Control : Daily use of Git, collaborating via GitHub or GitLab.

- Containerization : Familiarity with Docker for development and production consistency.

- Cloud Services : Working knowledge of AWS (e.g., EC2, S3) or similar.

Nice-to-Have :

- Proven microservices or event-driven architecture experience.

- Experience with infrastructure as code (Terraform, CloudFormation).

- Previous work in fast-paced, product-oriented start-ups.